Lock mechanism



June 20, 1939. E, D DALL Locx MEGHANISM 'Filed Feb. 28,y 195e Sheets-Sheet 1 June 20! 1939. E, 1:)l DALL. v 2,162,702

' LUCK MECHANISM Filed Feb. 28, 1956 I 4 lSheets-Sheet 2 I hy 36 l 4 1 ETE/.2

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June 20, 1939.

E. D. DALL 2,162,702

' LOCK MEGHANI SM Filed Feb. 28. 193e 4 sheets-sheet 3 fda/afa' a.

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June 20, 1939.--

E. D. DALL Loox MEGHYANIsl-M Filed Feb. 28, 1956 4 sheets-sheet 4 y ma Dr' dwvard aaf Patented June 20,A 1939 'UNITED STATES LCK MECHANISM Edward D. Dall,` North Chicago, Ill., assignor to Walter F. Wright, Shaker'lleights, Cleveland,

' Ohio Application. February 28, 1936,Serial No. 66,149

3 Claims.

This invention relatesto locks for the doors of automotive vehicles for individually controlling the doors in the usual manner but designed especially for cooperation in a locking controlling system for simultaneous locking or unlocking thereof from some' point Non the automotive vehicle within easy reach of the driver. The invention also involves improved cooperation and inter-control of the outer-and the inner latch y or lock operating handles 'of the. vehicle doors so that locking may be readily accomplished from either the -outside or the inside of the vehicle. The lock structures of .the present invention may be readily and efficiently utilized in locking i controlling systems such as disclosed in my cof pending application Serial No. 655,180 filed February 4, 1933 or in my copending' application Serial No. '716,306 iiled March 19, 1934, the main purpose of the present invention being to pron vide improved and simplied structure and assembly so that the locks may be durable and economically manufactured and installed. The locking structure of my invention is fully disclosed on the accompanying drawings, in

, which drawings Figure l is a side elevation of a master lock and the inside handle mechanism associated therewith;

Figure 2 is an outside end view of the masterl lock of Figure 1; Figure 3 is a bottom end view of the master lock vof Figure l;

Figure 4 yis a side elevation of a remote lock for cooperation with and control by the master 5 lock of Figure 1;

Figure 5 is a side elevation of a modified form of master lock;

Figure 6 is a side elevation of a remote lock for association with and o lock of Figure 5;

Figure 7 is a top view of the inside handle mechanism shown in Figure 1;

Figure 8 is a side elevation of the roll-back actuating cam member in the lock of Figure 1;

1 Figure 9 is a side elevation of the roll-back member of the lock of-Figure 1; and

Figure 10 is a transverse section of a stile between adjacent doors showing the transmission means for transmittingcontrol movement of a 0 master lock to a. remote lock.

The lock structure disclosed on Figures l, 2. and 3 constitutes a master lock assembly from which thel locking system of a vehicle will be controlled, and this lockingL assembly would 'g5 preferably be on the right front door of an autocontrol by the master (ci. zo-149) The door latching and locking l lar opening 3 for passage of the bevelled latch bolt head 4 secured to the plate 5 slidable on the supporting plate Ij andguided by a post 6 extending from the supporting plate through the longitudinal slot 'Iin the latch plate. A spring 8 engages against the inner end of the latch bolt head and tends to hold the latch structure in its outer latchi'ng position. .The latch plate at its inner end is widened and has 'rearwardlyl projecting guide flanges 9 and II! engaging the supporting plate I.

Below the latch bolt structure and adjacent tothe flange 2, a cover. plate II is spaced a distance from but secured to the supporting plate I. The Isupporting plate I and the cover plate II have aligned openings I2 and I3. The opening I2 journals the hub Il on the roll-back member I5 while the opening I3 journals the hub I6 on the cam member I1, these 'members being side by side between the supporting wall I and the cover plate II. The cam member has the rectangular axial passage I8 for receiving the rectangular shank, I9 extending from the louter door handle so that when the 4handle is turned the cam will turn therewith. The roll-back member hasv a cylindrical axial opening 2|v through which vthe handle shank extends. The cam member has a cam tooth 22 for cooperation with an abutment lug 23 extending from the roll-back member.

Slidable and swingable on the supporting wall I Vbelow the latch bolt structure is a Aretractor bar 24 having a pin 25 at its outer end extending through a guide slot 26 in the wall AI parallel with the movement of the latch bolt structure. An arm 2l extends upwardly from' the roll-back member in alignment with the outer end of the retractor bar so that when the roll-back member `is rotated in clockwise direction (Figure 1) the retractor bar will beshifted longitudinally, and

when the retractor bar is in normal position its inner end will be in front of rthe lower flange III on the latch bolt plate 5 so that the bar may communicate the rotation of the roll-back member to the plate 5 for retraction of the latch bolt structure. The roll-back member is rotated in clockwise direction when the handle 20 is turned in the same direction and the tooth 22 on the a stop 33 and inv its outer normal position with by a suitable key lock, preferably of the cylind and tumbler type. The locking lever 34 has',

cam member engages with the lug 23 on the rollback member.

Inwardly of the roll-back and cam members, a pin 28 is journalled in the wall I and cover plate II and carries a cam lever 29 on which is mounted a cam'pln 30 for engaging with the underside ofthe retractor bar 24 when the lever 29 is turned in clockwise direction, such turning being eiected by engagement of the cam tooth 22 with the lever 29 when the cam member I1 is turned in counter-clockwise direction by the handle 20. Upon such turning of the cam lever, the pin 39` will cause the retractor bar to be swung upwardly a suillcient distance to carry its inner end above the ange I Il on the latch bolt plate so as to free the retractor bar from the latch bolt structure andvprevent retraction of the latchbolt structure lwhen the retractor bar `is shifted inwardly by clockwise turning of the roll-back member. A spring 3l mounted on the wall I engages at its lower end against-the top of the retractor bar and against a lug 32 on the bar and tends to hold the bar downwardly against the barpin 25 against the outer end fof the slot 26.

Below the cam lever 29 a locking lever 341s pivoted at its upper end on a post 35 extending shank or bar 31 extends to the outside of the` door on which the lock structure is applied and* the turning of the shank is preferably controlled,

stop shoulder 39 for cooperating with the shou der 4Il at the lower end of the cam lever 29. O Figure 1 the lock structure is shown in unlocked condition, the shank 31 having been turnedto engage the cam 36 with the locking lever 34 so as to withdraw the shoulder 39 from the path oi the cam lever. When it is desired to Alock the latch bolt structure against retraction by the [if retractor bar 24 the key is first turned to cause t the cam 36. to be swung away from the lower end of the locking lever 34 so that 'the lever may be swung upwardly by a spring 4I to bring its shoulder 39 into the path of the cam lever. The handle 20 is then turned a short distance in counter-clockwise direction for engagement of the cam member I1 with the cam lever 29 for clockwise rotation of the cam lever and upward swing of the retractor bar to its locking position, that is to a position which frees it from the latch bolt structure. As the cam lever is turned its lower end glides past the lever 34 so that the lever may be swung upwardly by the outer 'handle 20 the key is turned to engage the cam 36 with the locking lever' for downward swing lof the lever and withdrawal'thereofl from the cam lever 29, the spring 3| then returning the retractor bar to its normal or unlocking position, the downward swing of the retractor bar, by 'its engagement with the cam pin 30.

causing the cam lever 29 to be swung back to its normal position. Now upon turning of the handle 2lil in clockwise direction theI roll-back member I5 will shift the retractor bar 24 inwardly against the abutment ilan'ge I0 and the latch bolt structurewill be retracted.

Besides. controlling the retraction of the latch bolt in the master lock (Figure l) the cam lever 29 functions also to control the retraction of the latch bolt 'in remote locks, that is, locks on the other doors of the vehicle. Between the wall I and the locking lever '34 a plate 42 is slidable and carries at its outer end a pin 43 which projects through a passage 44 in thev flange 2. The hairpin spring 4I which is coiled about the post 35 engages at its front end with the locking lever 34 and tends to swing it upwardly and at its rear end engages the abutment 45 formed on the plate 42. this spring tending to normally hold the plate 42 shifted inwardly with the outer edge of the guide slotr46 in the plate abutting the post 35. When thehandle l2li of the master lock is turned in counter-clockwise direction to swing `the cam lever 29 for releasing the retractor bar acting through transmission mechanism provided'in the Stiles or posts between adjacent doors, will cause inward movement ot pinsl in the. remote locks for swinging of retractor bars in such remote locks away from the latch bolt structure therein so that., at such remote locks the latch bolt structure cannot be retracted by turning of 1 the [outer handle.

u When the key-'controlled cam 36 of the master l ock is turned for release of the locking lever .4', the cam lever 29 will be locked by the locking lever in set position to hold the plate 42 and pin `r '43 in outer position, and when the cam 36 is vreset to swing down and release the locking llever from the cam lever the spring 4I will shift the plate 42 inwardly to cause retraction of the pin 43 and thereby release the locking means in the remote locks so that these locks can again be opened from the exterior.

. For controlling the latch bolt operation from the inside of the door on which'the lock structure is applied, a supporting plate 41 is secured to thevdoor inwardly of the latch bolt supporting structure and another plate 48 is spaced from and secured to the main plate 41. These plates journal the shank 49 of an inner door handle 50 and the shank, between the plates, carries an arm 5I connectedtby a 'link 52 with the latch bolt plate 5, the connection being by means of a pin 53 on the link engaging in the longitudinal slot 54 in the latch bolt plate 5. When the handle 50 is swung in clockwise direction the resulting pull on the link by the arm 5I will shift the latch bolt plate 5 inwardly for retraction of the latch bolt head 4. When the inner handle 50 is in neutral position the pin and slotconnection 53, 54 will permit retraction of the latch bolt structure by the outer handle 20. A When the inner handle 50 is swung e. distance in counter-clockwise direction the latch bolt structure will be locked against retraction by the outer door handle'and at the same time the pin 43 will be shifted outwardly for locking of the lother lock latch bolts against retraction by their outer handles. This is accomplished by means and outward movement on the wall I by pins 56 on the wall engaging in slots 51 in the slide plate. The slide plate at its inner end has the upward extension 58A in the path of the head 53 on the pin 53 so that when the link 52 is pushed by the v counter-clockwise rotation of the inner handle the head 53'. will abut the extension 58 and the slide plate 55 will be shifted outwardly to carry its end 59 into position below a linger 60on the roll-back member I5 so that the roll-back mem.- ber cannot be turned by the outer handle but will be dogged and therefore the latch bolt cannot be retracted. Also during outward movement of the slide plate 55 a shoulder 6I thereon engages with the inner end of the plate 42 and this plate willA be shifted outwardly for outward projection of the pin 43 and consequent locking of the latch bolts of the remote locks against retraction by the outer handles.

Ordinarily, when the inside handle mechanism is operated for locking of the master lock the cam 36 will be in position for holding the locking lever 34 down so that the cam lever 29 vwill be in its normal position.' Then when the dogging plate 55 is shifted inwardly by operation of the inside handle the upper edge thereof will come into position'below the stopping 62 on the cam lever thus locking-the cam member I1 and the outside handle 20 against counter-clockwise movement, and as the roll-back member I5 is dogged against movement by the dogging plate the outside handle will be rigidly held against any rotational movement.- Should attempt be made to lock by operation of the 'inside handle when the master lock .has already been set to locking position by counter-clockwise rotation of the outer handle and clockwise rotation of the cam lever 29, then the abutment 62 on the cam lever will be in front 'of the outer end of the clogging plate 55 and the 'anchored on the plate '.48 and engaging at its end in a locking notch 64 provided in the hub of the arm 5I. When the handle mechanism has been actuated for dogglng of the lock roll-back, the spring 63 will be received in the notch 65 and the actuated parts will thus be held in set position. The spring 4I will resist the clogging movement of the inner handle structure but the force of this spring is overcome by that of the spring 63 and the parts will be held in set position until the inner door handle. is swung back to release the arm 5I from the spring 63 and then both springs will function to assist in returning lthe inner handle structure back to normal position.

Anauxiliary spring 66 may be provided on the plate 48 for engaging with and adding its pressure to the spring83.

When the inner door handle is rotated in clockwise direction for pull on the link 52 to retract the latch bolt structure the cylindrical portion of the hub of the arm 5I will be engaged by the spring 63 without locking of the arm, and then with its innerend in front of the abutment ange I0 on the latch bolt plate 5. The .locking by the inner handle mechanism is accomplished by dogging of the lock roll-back I1 against movement by the outer handle in a manner which has been explained above.

on Figure 4 is shown the lock structure slightly modied for service on the remote vehicle doors,

'that is the doors other than the door on which v the master lock is applied.

The structural parts in the lock of Figure 4. which are the same as the structural parts in Figure l, have been given the same reference numerals. In the structure of the remote lock the cam element I1 of the master lock structure has been omitted and the roll-back' member 61 is journalled by its hubs in the openings I2 and I3 in the supporting wall I andthe cover plate II respectively, the roll-back member having a polygonal opening for receiving the shank or stem 68 of the outer` handle (not shown) for the door so that upon turning of the handle the roll-back is directly rotated'for engagement of its arm with the outer-end of the retractor bar l24 whose inner end is normally'in position in front of the abutment ilange III on the latch bolt structure plate 5. Locking of the latch bolt structure against retraction by the outer handle'IiQ is accomplished,

shift of the pin 43 on the plate 42,A such inward.

shift being, as has already been explained, caused by the outward movement of/'the pin 43 in the master lock by Way of transmission mechanism within the post or stile between adjacent doors. In place of the cam lever 29 in the master lock shown in Figurel, a bellcrank-shaped lever 16 is provided in the remote lock and supportedby the pin 1 I journalled in the wall I and the cover plate II. At its inner end this lever has the abutment extension 12 for engaging with the under edge of the retractor bar 24 sc that when the lever is swung in counter-clockwise direction the retractor bar will be swung upwardly to raise its inner end above the abutment ange Ill on the latch bolt structure. At its lower end the lever has a notch 13 inwardly of which the lower edge of the lever forms an inclined or cam surface 14, land outwardly of which notch the lever has the abutment nger 15, the notch normally receiving lthe abutment extension 16 deflected from the plate 42 from which the finger 43 extends.

Figure 4 shows the parts in unlocked position, 60k

the pin 43' being held in projected position by the force of a hairpin spring 11 coiled about the post 35 with one end anchored around the edge` of the-wall I andthe other end engaging the abutment deflection 45 on the plate 42. In such i normal position the abutment 16 on the plate 42 -ls within the notch 13 and against the nger 'I5 on the lever 10 to hold this lever released from the retractor bar 24 which seats against its rest `33 so that when the door handle is turned in yclockwise direction the retractor bar will engage with the-latch bolt structure for retraction there-` of. However, should the pin 43' be shifted lnwardly, the abutment 16cm the plate 42 will engage with the cam edge 14 of the lever 1I and the lever will be swung upwardly for engagement of its abutment 12 with the retractor bar to shift the retractor bar to locking position, that ls free from the latch bolt structure so that when the door handle is then turned the retractor bar will merely shift longitudinally but will not retract the latch bolt. Upon release of the pin 43', the spring 11 will shift the plate 42 back to its outer position so that the engagement of the abutment 16 with the linger 15 on the lever 10- will swing the lever downwardly for release of the j ture the same inner handle mechanism could be provided as that shown in connection with the masterv lock structure on Figure l, the handle mechanism being connected by link 52 with the latch bolt structure through the pin and slot connection 53, 54.. When the handle is swung the u of the master lock to the pin as' of the lock in the door adjacent to the master lock door,'is shown on Figure 10. vAt the sides of the post 18 between the adjacent door levers 19 and 19 are pivoted at their outer ends by pins 80 for horizontal swing, a transmission bar 8| slidable on the rear Wall of the stile being interposed between the ends of the levers. The lever 19 is in alignment with the pin 43 of the master lock structure and the lever 19' is in alignment with the pin 43' of the remote lock so that when the pin 43 is shifted outwardly the pin 43' will be shifted inwardly for locking of the respective latch bolts against unlatching movement by the respective outer door handles.

Figure 10 shows the master lock pin 43 out and the pin 43 of the remote door in so that the locks are in locking position. It may be that an occupant of the vehicle in which the locks are all set to locking condition, may desire to leave the vehicle by way of one of the remote doors but he does not want to lock himself out. With the structure thus far described in connection with the remote lock (Figure 4), when the occupant withdraws-the latch bolt by operation of the inner door handle and he swings the door open, the pin 43 will be released from the transmission lever 19'- and the pin will be shifted outwardly and cause downward swing of the cam lever 10 'and release of the retractor bar 24 to unlocking position, but as soon as the door is slammed shut the pin 43 will again be shifted inwardly by its engagement with the transmission lever 19' and the retractor bar 24 will be restored to locking position. To prevent such locking movement an offset wing 82 is provided on the inner end of the lever 10 and on the latch bolt plate 5 a cam hump 83 is provided in advance of the wing 82.

The connection of the lever 10 with the pin 1| is suillciently yielding so that the lever may be swung forwardly out of its locking plane, a fiat spring A84 anchored vat the pin and engaging against the inner end of the lever tending to hold it in its inner position. Now when the latch bolt is withdrawn by operation of the inner door handle the camV hump will engage with the wing 82 and swing the lever 10 forwardly to withdraw its abutment '12 from below the retractor bar 24 and the spring 3| will then swing the retractor bar down against its rest 33 to unlocking position with its inner end in alignment with' the abutment flange l on the latch bolt plate 5. As the door is now swung open and the handle is released, the latch bolt will be shifted outwardly by the spring 8 andthe lever 10 will be released from the cam hump 83 vand the spring 84 will hold the lever against the front face of the retractor bar. Also while the door is being swung open the pin 43' is released from the transmission lever 19 and is shifted outwardly by the spring 11, such outward shift of the pin and its supporting plate 42 causing engagement of theabutment 16 with the lower end of the lever 10 and downward swing of the lever back to normal position with its abutment 12 below the lower edge of the retractor bar. -When the door is now slammed shut after the occupant has left the vehicle, the pin 43' and its supporting plate 42 will be re-shifted inwardly by the engagement of the pin with the transmission lever 19' and the lever will be swung upwardly and the retractor bar raised to its locking position, but at the same time the latch bolt is shifted inwardly by the engagement of its head 4 with the keeper (not shown) on the stile 18 and the cam hump 83 engages the wing 82 to swing the lever 10 forwardly for release of the retractor bar'so that the bar is again swung down to unlocking position by the spring 3| and therefore the door will remain open for re-entry by the occupant. Relocking of the remote dooris then accomplished by actuation of the inner door handle for the master lock, first to unlock the master lock so that the pin 43' of the remote lock may shift outwardly for return of the lever 10 to normal position, and then actuation of the master lock inner handle for re-locking of the master lock and the resultant inward movement of the pin 43 of the remote lock for upward swing of the lever -10 'and return thereby of the retractor bar to locking position.

Referring. to Figure 10, the movement of the transmission lever 19 controlled by the master lock 43 ymay be communicated to a suitable 1ever-85vpivoted at 85 to the post `18 and the movement of the lever transmitted by a cable 81 to transmission means btween the adjacent doors on the oppositefside of the vehicle so that all the remote door locks may be controlled by operation of the master lock in a manner such as is disclosed in mycopending applications referred' to herein.V l

Figure 5 shows -La modified arrangement for a master lock. Herejthelatch bolt structure is at the bottom of the lock and the controlling means at the top thereof. The -latch bolt plate 88 supports the latch head 89 and at its inner end has the upper and lower rearwardly extending flanges 98 and 9| -engaglng the .supporting wall 92. the upper flange 90 forming an abutment for the retractor bar 93 which at its outer end has a pivot pin 94 guided by the slot 95 in the wall 92.

The spring 96 engages against the lwer edge of the'retractor bar and against the bar abutment projection 91 and tends to hold the-bar in its outer position and upwardly against its rest 98.

The roll-back 89 is supported between the wall 92 and a closure plate |00 and has a polygonal 75 opening` for receiving the shank of the outer door handle, the end of the roll-back being engageable with the inner end of the retractor bar when the handle is turned in clockwise direction (Figure such rotation shifting the bar 93 inwardly against the abutment flange 90 on the latch bolt plate for shifting of the latch bolt -abutsa guide post |01 secured to the wall 92 and extending through the slot, the spring tending to hold the actuator plate in innerv position. Above the actuator plate a cam lever |08 is pivi oted intermediate its ends on a post |09 extend wardly to carry its abutment |08 against the re` ing from the wall 92, this lever in its under edge having a slot ||0 for receiving the extension or tooth on the actuator plate |03, the lower edge of the lever outwardly of its notch ||0 having the cam surface ||2. On its under edge at the inner end thereof the lever |08 has the rearward deflection |08 positioned above the retractor bar 93 for engagement with the upper edge thereof.

Behind the lever |08 and in alignment with the actuator plate |03 a locking lever ||3 is pivoted at its inner end on the post |09 and has a linger H3' at its upper corner for engagement bya cam I4 on the shank I5 which at its outer end, that is on the outerside of the door, is connected with al key-controlled lock cylinder f not shown) whereby the shank and the cam may be turned,

At its lower edge andin advance of a tooth ||6 extending upwardly from the actuator plate |03 the locking lever has the latch extension ||1. When the cam ||4 is swung upwardly by 'operation of the controlling key and into engagement with the finger H3', the locking lever ||3 will be raised to withdraw its latch end from the path of the tooth |6 on vthe actuator plate, but when the cam is swung down the locking lever will drop to project its end into the path of the tooth H0 so that when the actuator plate is shifted outwardly the latch end will drop behind the tooth H8 and so lock the plate in its outer position. A spring ||8 anchored on the post |09 and against a stop ||9 deflected from the plate |00 engages at its other end the abutment |20 on the locking lever and tends to hold this lever swung downwardly.

When it is desired to lock the latch bolt structure against retraction by means of the handle from the outside of the lock structure, the key is ilrst `turned to swing the cam ||4 downwardly to release the locking lever ||3. The outer handle is then rotated in counter-clockwise direction for engagement of the roll-back 99-against the abutment |04 on the actuator plate for outward Shift of the plate, such outward shift moving the abutment tooth out ofthe notch ||0-. and along the cam-edge ||2 of the cam lever |08 so that the inner end of the lever will swing downtractor bar 93 to swing this bar downwardly to a position with its inner end below and free of the abutment ilange 90 on the latch bolt plate 88. After outward shift of the actuator plate the latch end H1 of the locking lever will have dropped behind the tooth H6' and 'the actuator ner end of the actuator bar |03.

* for causing` locking of in its outer position and the be held in its lower position plate will be held retractor bar will free of the latch bolt structure so that when the handle is turned in clockwise direction the retractor bar will be shifted longitudinally inwardly but as the bar is free of the latch bolt structure, the latch bolt structure will not be retracted. To unlock, so that the latch bolt structure may be unlatched, the key is turned to swing the carri4 ||4 against the finger ||3 Vfor raising of the lock'- ing levei` ||3 for release of the actuator bar and the spring |05 will then shift the bar back .to its inner'position, the engagement of the'tooth on the actuator bar with the inner edge of the notch ||0 then causing the lever |08 to be swung upwardly at its inner end for release of the retractor bar so that the spring 96 may move the bar back to its unlocking position.

The actuator bar y|03 terminates at its outer Y end in a pin |2| which, when the actuator bar is shifted outwardly, cooperates with transmission mechanism within a stile post for ,actuation of the -lock controlling pin in a remote l'ock in a manner which has already been explained hereinbefore, so that upon locking ofv the master lock the locks on remote doors may simultaneously be locked.

The inner handle mechanism for controlling a lock structure shown in Figure 5 may be the same asthat shown on Figure 1, the movement of the inner handle being transmitted by a link |22.

This link has lower and upper ends |23 and |24,

the lower end carrying a pin |25 engageable in the slot |26 in the latch bolt plate 88 so that by turning of the inner handle in clockwise direction (Figure '1), the pull on thev link |22 will shift the latch bolt structure 88 inwardly for unlatching of the door.

The upper'end |24 of the link is in alignment with and normally a short distance from the in- If it is desired to lock the doors by operation of the inner handle associated with the master lock, the inner handle counter-clockwise direction (Figis swung in .ure l) the end |24 of the link |22 then engaging with the end of the actuatorbar |03 and shifting this bar outwardly for projection of its pin |2| theremote locks. Outward shift of the actuator bar. by engagement of the barabutment l||| with the cam edge H2 of the lever |08 will tend to cause the inner end of this lever to .swing down for engagement oi' the abutment |08 with the retractor bar to swing the bar to locking 'position clear of the abutment flange 90 on the latch bolt structure and the master lock latch bolt would then be locked against unlatching by the rotation of the master lock outside handle. However. means are provided for locking the retractor bar against inward shift by the roll-back 99, this being accomplished by a cam hump projection |21 on the front 'face of the link end |24, this cam'projection, when the link |22 is shifted inwardly, engaging against the rear side of the inner end of the cam lever 08 to swing the lever forwardly suiciently to clear its abutment |08' from the retractor bar 93 so that when the link end |28` engages with and shifts the actuator bar |03 outwardly the lever 08 will swing downwardly but with its abutment |08' in front of the retractor bar so that the retractor bar will not be swung downwardly, and the outer end of the lever abutment |08' will be brought into position in front of a stop pin |28 on the retractor bar and roll-back 99 will be blocked against inward swing. "When the link |22 is withdrawn by operprovided with sufcient clearance, and a spring Y |29 anchored on the post and engaging the inner end of the lever will tend to hold the lever in its normal rear position with its abutment |08 above the upper edge of the retractor bar 93.

Figure 6 shows a modified arrangement for a remote door lock for association with the master lock shown on Figure 5.A The parts on Figure 6 which are the same as the parts on Figure 5are given the same reference characters andthe modified parts are given different reference characters. The actuator plate |30 above the retractor bar 93 has the pin |2| extending from its outer end for engagement by the, actuator pin 2| in the master lock (Figure 5). The actuator plate is guided by a post |3| extending through the slot |32 in the plate, a spring |33 between the outer end of the slot and the post tending to hold the plate'and the pin in outer position. Pivoted'on the post |3| is the bellcrank-shaped cam lever |34 which is in front of the actuator plate |30 and has a notch |35 in its upper .edge to the inner side of which the lever has the cam surface |36, an abutment iinger |31 being at the outer side of the notch. and abutment |38 on the actuator plate |30 extending forwardly into the notch. At its inner end the lever |34 has an abutment ear |39 deflected rearwardly thereof. for engagement with the upper edge of the retractor bar 93 so that when the lever is swung downwardly the retractor bar will also be swung downwardly about its pivot 94 torcarry its inner end below the abutment flange 90 on the latch bar structure so as to free the retractor from the latch bolt structure. When the actuator plate is shifted inwardly by theengagement of its pin |2|' by the pin |2| of the master lock (Figure 5) the abutment |38 on the actuator plate will engage with the cam edge |36y to swing thecam lever |34 `down for engagement of its abutment |39 with the retractor bar so that this bar will be swung downto clear the latch bolt structure. With this position of the parts, when the rollback member 99' is swung in clockwise direction by corresponding turning of the outer handle on the shank .|0|, the retractor bar 93 will be shifted longitudinally inwardly but, as its inner end ls held below the abutment flange 90, the latch bolt structure will not be retracted and opening of the doors will thus be prevented from the outside thereof. When the actuating pin |2| of the master lock (Figure 5) is withdrawn, the pin I2|' of theremote lock (Figure 6) will be released so that the spring |33 may return the actuator plate |30 to its normal outer position, such return movement resulting in -engagement of the actuator plate abutment |38 with the linger V|3`| on the cam lever-and upward swing of the cam lever to normal position and release ofy the actuator bar which will then, by its spring 96, be swung upwardly to normal unlocking position in which position it will engage with the latch bolt structure when the Vroll-back is swung .in clockwise direction.

Whenk the doors are all lo'cked and an occupant of the vehicle Ydesires to leave by way of `oneof the remote doors the latch bolt structure` is rst retracted by pull'on the link |40 connected with the inside handle mechanism en the door, which inside handle mechanism may be the same as that disclosed in Figure 1. When the ,door is swung open the actuator pin |2I' will be released from the post between the adjacent doors and the outwardly shifting actuator plate |30 will swing the cam lever |34 upwardly for release of the actuator bar 93 which is t-hen swung up to unlocking position. When the door is slammed shut the pin |2| will again be shifted inwardly and the inwardly shifting actuator plate |30 will swing the lever |34 downwardly. To prevent the cam lever from swinging the retractor bar 93 back to locking position the cam lever is provided at its inner end with a forwardly oifset wing i4| which will be engaged by the cam hump |42 on the latch bolt structure plate l0 as the latch bolt structure is shifted inwardly when vthe'door is slammed shut and' the cam lever |34 will therefore be swung forwardly so that its abutment |39 will be released from the upper edge of the retractor bar and the retractor bar will be free to be swung upwardly by its spring 96 to unlocking position. The door is then handle for re-entry into vthe vehicle, To re-lock the door, the inside handle of the master lock (Figure 5) is rst actuated for unlocking of the master lock and release of the remote lock actuator pin |2|' so that the actuator plate |430 may shift outwardly for upward swing of the cam lever to return its abutment |39 into position above the upper edge of the retractor bar 93 and then the inside handle mechanism for the master lock is operated for re-locking of the master lock and inward shift of the pin |2|' of the'rernote lock for downward swing of the cam lever |34and downward swing of the retractor bar to locking position.

I have shown anddescribed a practical and efficient embodiment of the various features of my invention. but I do not desire to be limited to the exact construction, arrangement and operation referred to as changes and modifications may be made which will still come within the scope of my invention.

I claim as my invention:

1. In lock structure of the class described, a latch bolt, a roll-back and turning means therefor, a retractor element normally positioned to form a connection between said rollback and said latch bolt for retraction of said latch bolt when the rollback is turned by said turning means, a cam element operable by said turning means independently of said rollback to shift said retractor element to break said connection whereby to lock said latch bolt against retraction by said rollback, and means for holding said cam element in such connection breaking position.

25 .unlocked so it .may be opened by turning of the 2. In a lock structure of the class described,

the combination of a latch bolt, a roll-back, turnvsaid roll-back for causing disconnection of said retractor element from said latch bolt, and releasable means for holding said disconnecting means in disconnecting position. i

3. In a lock structure of the class described, a latch bolt, a handle structure,l an actuating element mounted on said handle structure to turn therewith, a roll-back associated with said actuator element, a. retractor element operable by said roll-back and normally positioned to form 'a connection between said roll-back and Said latch bolt, means` whereby turning 'of said handle structure in one direction will cause operation l0 of said roll-back to operate said retractor ele- EDWARD D. DALL. 4l() 

